Folding and strip-attaching mechanism



A. B. WALES.

FOLDING AND STRIP ATTACHING MECHANISM. APPLICATION maobmzo, 1 913.RENEWED SEPT. 13. 1921.

2 SHEETS-SHEET I.

Patented May 16, 19222 Wwvrssss Vl/U'A/ESSES A. B. WALES.

FOLDING AND STRIP ATTACHING MECHANISM.

APPLICATION FILED DEC.20, I913- RENEWEDSEPT.13.I92I.

1,416,810., Patented May 16, 1922.

v 2 SHEETSSHEET 2.

entree stares QDFFHQIEO ALFRED B. W, OF TIVIAN, MASSACHUSETTS, ASSIGNOR'10 LOZ IVIUTHER,

F NEWTON, MASSACHUSETTS.

Application filed December 20, 1913, Serial No. 807,841. RenewedSeptember 13, 1921,. Serial No. 500,320e.

. 'videa mechanism to be attached to folding machines so that stripsof'flexi'ble material of any desired length may be applied to thesurface of other material, and means by which said flexible strips maybe cut off from a continuous strip of material without interrupting theoperation of the machine or the feeding of the flexible strips ofmaterial and the material to which it is to be attached.

My invention is shown as applied to a folding machine of the type shownin the application for Letters Patent of the United States filed byWilliam F. Lautenschla or on April 26, 1913, Serial No. 763,828. y thiscombination of mechanisms the operator is able to fold the edge of aflexible material and at the same time apply a strip or strips offlexible material of an desired length to one of its surfaces at a slght distance from, but independent of the folded edge.

In the drawings illustrating my invention- Figure 1 represents a sideelevation of a folding machine with my mechanism for applying a flexiblestrip of material attached thereto and with the cutting knife forcutting the strips of material in its normal inoperative position; I

Figure 2 is an enlarged front elevation of the knife for cutting off thestrips of material to the desired length with a section of the foldingmachine to which it is attached.

The knife is shown in this view as moved tion shown in Figure 2 ready tocut the material, and the guiding mechanism for. guiding the strip ofmaterial thrown away from the feeding mechanism of the folding machine.

Specification of Letters Patent.

Figure 4 is an end elevation of a section of a folding machine to whichmy improved mechanism is attached and shows a portion of the feedingmechanism of the folding machine the guide for guiding the flexiblestrip of material movedinto position contiguous to the feedingmechanism, and the knife for a cutting the material moved to its normalinoperative position as shown in Figure 1;

Figure 5 is an enlarged view of the cutting knife detached from thefolding machine so as to better illustrate its construction;

Figure 6 is a sectional edge elevation of v the/knife and a section ofthe folding machine to which it is attached, taken through line 66Figure 5, and shows the position assumed by the cutting portion of thecutting knife and a portion of the oscillating bearing upon which thestrip applying mechanism is mounted;

Figure 7 is a front elevation of the cutting knives and the leverforoscillating them, shown in the position they assume immediately afterthe strip of material has been cut;

Figure 8 is an enlarged section taken through line 8-8 Figure 1Q Figure9 is an end elevation, of the elongated tube 45 looking at it from theleft hand end as viewed in Figure 3, showing the saw-toothed edgesdesigned for the purpose of feeding the tape;

Figure 10 is a section of the elongated tube 45 on the line 2-2, Figure9.

In the drawings illustrating my invention, 1 represents the body of afolding machine to which my improved mechanism is applied, and 2 is anoscillating member of the folding machine which is mounted upon theoscillating shaft 3. The cutting knife 4 is mounted upon a stud 5secured in' the oscillating member 2. The cutting knife 4 con-.

sists of the blade 6 which is mounted upon said stud 5 so as tooscillate thereon, but to be immovable endwise thereof, 'and the cuttingblade 7 which is provided with the slots '8 and 9.. The slot 8 1smounted to oscillate and slide upon the stud 5 and the slot 9 to slideupon a screw 10 which is threaded into the cutting knife 6. This methodof mounting the knife 7 permits it to have an oscillating as well as anendwise reciprocating movement so that the cuttin edge 11 of the knife 7will pass down by t e cutting edge terial between it and the cuttingedge 12 of 12 of the knife 6 and cut any flexible material that may bewithin the space 13 when the knife 7 is operated. a

The knife 7 is provided with a square projecting lug 15 so positionedthat when it is moved upwardly to its upper normal position as shown inFigure 5, this lug will enter the slot 16 formed in the lower edge ofthe operating lever 14. The operating lever 14 is mounted tohave-rotative movement only uponthe stud 5 and is provided with a hole17 designed to receive the end of the rod 18. The rod 18 is in turnpivoted to the arm of a bell-crank-lever 19 which is mounted upon thestud 20. The bell-crank-lever 19 is provided with the arm 21 forrotating it upon the stud 20. A rod 22 is pivoted to the arm 21 andextends downwardly and is pivoted to the rod 23. The rod 23 is secured.to one of the arms 24 of a vbell-crank-Iever 25. The bell-crank-lever 25is mounted on a shaft 26 which is rotatively mounted in bearings 27which may be attached underneath the top 28 of a bench or other support.The bellcrank-lever 25-has the rod 29 secured to its arm 30. The rod 29extends downwardly and has adjustably mounted upon it a flat member 31against which the knee or leg of the operator may be pressed for thepurpose of oscillating the bell-crank-lever 25 to throw the cuttingknife 4 into operative position.

While I prefer to use the leg or knee operating device shown forthrowing the cutting knife into operation, the rod 22 may be extended sothat a treadle can be attached and used to throw the cutting knife intooperative position with exactly the same results as if the leg or kneeoperating device was used.

As viewedin Figure 1, pressure of the knee or leg of the operator uponthe part 31 will move it to the right and move the rod 22 upwardly toswing the arm 19 of the bellcrank-lever to the right, therebyoscillating the operating lever 14 and the knife 4 to the right as shownin Figure 2 until the cutting edges of the knife 4 will embrace theflexible strip in position to cut it off.

The means for operating the cutting-blade 7 consists of the verticallyreciprocating lever 34 which is a part of the folding machineand whichreciprocates up and down, and upon which there is mounted a plate 35secured to it by means of the screw 36.- This plate 35 has a notch 37which will engage with the inturned portion 38'as is best seen in Figure6, which notch serves to move the cutting-knife 7 longitudinallydownward so that its cutting edge 11 will cut off the mathe knife 6 whenthe knife 4 is oscillated to the position shown in Figure 2.

lVhen the cutting-blade 7 is moved downwardly a suflicient distance tocut the mateaeiaeie rial, the square lug 15 is disengagedfrom the notch16. When the lug 15 is disengaged from the slot 16 and the reciprocatinglink 34 and plate 35 starts to move upwardly to The tension of thespring 39 accomplishes this movement for the reason that its pull issidewise, or in such a way as to ro tate or oscillate the lower end ofthe knives 6 and 7,

as viewed in Figure 2. It will be seen that the lower end of theextensible spring is attachd" s'ubstantially in the middle of thecutting-blade 7, or half way between its edges, and the upper end of theextensible spring is attached at one side, or the right hand side of thehead of the pivot screw 40 which serves to hold the knives 6 and 7 andthe operating lever 14 in place. This causes a sidewise draw on theknives 6 and 7 and serves to automatically, rotate or oscillate themupon the pivot 5 after the strip has been cut. The spring 39 is attachedat its lower end to a pin 41 and at its upper end to the pin 42.

This rotative movement of the knives 6 and 7 takes place after theflexible strip of material has been sheared and immediately after theblock 35 with the notch 37 has started to move upwardly to relieve thetension upon the inturned edge 38, at which time the lug 15 isdisengaged from the notch 16 so that the knives 6 and 7 are free torotate upon the stud 5. The purpose of this backward movement of theknives 6 and 7 is to prevent their cutting more than once should thecontact piece 31 and its connecting mechanism be held in position tothrow the knife into cutting position as shown in Figure 2. In that casethe knife will cut the tape once; the lug 15 will disengage the slot 16and immediately the cutting blades 6 and 7 will move to their normalinoperative position as shown in Figure 1, notwithstanding the lever 14is held in the position shown in Figure 2. This movement moves theinturned end 38 out of the path of the notch 37 so that thereciprocating movement of the plate 35 will not affect the cuttingknives. The lever 14 is moved to its normal position as shown in Figure1 by the spring 43 attached to the bearing 46 of the strip-guidingmember 44, and best seen in Figures 3 and4. The strip-guiding member 44is provided at its lower end with the elongated tube 45 which may beprovided with saw-toothed edges 45*, or any suitable frictional device,at its left hand end to prevent the strip from being pulled out. Themember 44 is removably and adj ustably secured in the oscillating bearin'46. This oscillating bearing 46 is pivoted upon. the

i the portion 31 and its connections.

ber 44 to the left, as viewed in Figure 3, and.

hold it in position to guide the strip of material as shown in Figure 4.The member 44 is prevented from oscillating further to the left than isseen in Figure 4 by means of a stop 54, best seen in Figure 2, and whichis attached to the portion 46 and extends outwardly so as to contactwith. the portion which is formed upon the operating lever 1 14. Thelever 14' and'knives 6 and 7 are held in the position shown in Figure 1by the tension of the spring 43 exerted upon the bearing 46, theextending lug 54 and the portion 55. At the same time the knives 6 and 7are held in position with their right hand edges against the stop 56.

Assuming the knives 6 and 7 are swung backwardly and to the positionwith relation to the lever 14 as shown in Figure 7, the lever 14 beingheld in the position shown by The moment the pressure is released fromthe part 31the lever. 14 will swing to the left, as shown in Figure 1,'by means of the tension of the spring 43exerted upon the bearing 46,its extending portion 54 and the part 55. When the lever 14 has swung toa point where it is in alignment with the knives 6 and 7, as shown inFigure 1, the tension of the spring ,39 will draw the knife 7 upwardlyuntil the square lug 15 enters the notch 16 and arrests further movementof the operating lever 14 as well as further movement of the oscillatingbearing. 46 and the rod 44 and its elongated guide 45, thus holding theguide in feeding position as shown in Figure 4.

Tn carrying out my inventionI provide a cement receptacle havingprojecting downwardly therein, means for guiding the strips of flexiblematerial in and out of the receptacle6i), comprising a downwardlyextending strip-guide 61. The strip 62 enters the side of the receptacleat 63, passing downwardly around the projection 61 and upwardly past awiper 64,which removes the surplus cement. The strip is guided by theedges 61*. The strip then passes upwardly out of an orifice 65 andthence to a guide 66 and forwardly over the guide 67, thence downwardlyto the elongated guide 45. It will be noted that the saw-toothed edges45 are so formed and positioned that they slant forwardly and upwardly.in the direction of feed of the strip so that said strip can be pulledthrough the elongated tube 45 in one direction, but will be prevent edfrom being pulled through in the other direction by the teeth 45, whichowing to their position underneath, would catch in the strip if it wasattempted to pass it through in the direction from left to right. Theend of the strip 62 extends under the presserfoot 70 which is one of theoperative parts of the folding machine. This presser-foot 70 is soarranged that during the forward movement of the feed-foot 71 thepressei foot will be raised from the nniterial, as shown in Figure 3,and during the backward and non-operative movement of the feed foot 71the presser-foot 70 pressesdown wardly upon the flexible strip, pressingit against the, material to which it is to be applied so as to stick itto said material. The strip 62, in the case of a folding machine, passesunder the fold-presser foot 72 which presses said flexible strip to thematerial to which it is applied, thus completing the op eration ofcementing it.

In practice, the cement receptacle is tilied to the level of the dottedlines and the strip 62 passes down the guide 61 between the edges 61with suflicient tension applied to the strip 62 to firmly hold itagainst the surface of the guide 61. By this means cement' is allowed toreach one side of the strip 62 only so that when it is attached to thematerial to which it is to be applied there will be no cement on theexposed surface of the strip.

M invention is not to be confined to the exact form of the parts shown,nor to their location with reference to each other, as their form andarrangement may be varied without departing from thespirit of myinvention.

What I claim is- 1. The combination in a folding machine, of means forfeeding and folding the edge of a flexible material, with means for attaching a strip of flexible material of any desired length to saidfirst-mentioned material, contiguous to, but independent of the foldededge.

2. The combination in a folding machine,

of means for feeding and folding the edge of a flexible material, withmeans for feeding and cutting off to any desired length and attaching astrip of material to said firstmentioned material, contiguous to, butindependent of the folded edge thereof.

3. The combination in a folding machine, of means for feeding andfolding the edge of a flexible material with a device for feed .ing andattaching a strip of material to said first-mentioned material,contiguous to, hut I independent of the folded edge, and means under thecontrol of the operator for cutting off said strip of material to anydesired length. 1

4. In a folding-machine, the combination der control of the operator forrendering the cutting ofl' means operative, and for automaticallyreturning the cutting means to' its normal inoperative position afterthe strip of material has been cut.

5. In a folding machine, means for feeding and folding the edge of aflexible material, combined with means for feeding and attaching a stripof material to said firstmentioned material, contiguous to, butindependent of the folded edge, means for guidin the strip of material,meansTfor cutting of? the strip of material, normally 'inoperative,meansunder the control of the operator for rendering the means forcutting ofl the material operative, and means \for automaticallyreturning the cutting means to its normal inoperative position after thestrip of material has been cut without interrupting the operation of thefeeding and folding mechanism.

6. A machine of the class described having, in combination, mechanismfor folding the margin of a piece of pliable, material, and means forapplying to the body of said material inside of and adjacent to butwithout the plies of said folded margin a piece of tape.

'Z'. Ainachine of the class described having, in combination, mechanismfor progressively foldin the margin of a piece of pliable material, andmeans for similarly applying to the body of said material inside of andadjacent to but without the plies of said folded margin a piece of tape.

8. A machine of the class describedhaving, in combination, a support fora piece of inmate pliable material, mechanism for feeding said materialover said support and for folding and pressing the margin, and means forguiding a piece of tape into position inside of and adjacent to butwithout the plies of said folded margin whereby the tape is pressedsimultaneously with the pressing of the margin.

-9. A machine of the class described having, in combination, a supportfor a piece of pliable material, mechanism for feeding said materialover said support and for folding and pressing the margin, saidmechanism including a presser the acting face of which, when the presseris in operative position, overhangs the fold, and means for guiding apiece of tape alongside-the marginto be folded but in such manner as tolie without the plies of the fold into position beneath the overhangingportion of the presser. v

10. A machine of the class described having, in combination, a supportfor a buttonfly having a folded margin, means for feeding said buttonflyover said support, means for laying upon said button fly alongsidebut without the plies of said folded margin a piece of tape during thefeeding operation, and means for pressing said tape-against said buttonfly.

11. A machine of the class described having, in combination, a supportfor a piece of material having a folded margin, means for feeding saidpiece together with a piece of tape over said support, means for guidingsaid tape alongside but without the plies of said folded margin, andmeans for pressing said tape against said material.

In testimony whereof, I have hereunto set my hand, in the presence oftwo subscribing witnesses, this 18 day. of December,

ALFRED B. WALEF Witnesses:

L. MUTHER, R. P. Emor'r.

